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San Jeronimo Weather Records (MXN00007146)

Record envelope, standing records and threshold days for San Jeronimo (MXN00007146), Mexico, with 64 years of record.

Key Facts for San Jeronimo

  • San Jeronimo (MXN00007146) is a weather station in Mexico at 15.03 latitude and -92.13 longitude, 750 m (2,460 ft) above sea level.
  • The station reports from 1949 to 2012, 64 years of record.
  • 1,464 records set at San Jeronimo still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Jeronimo set a daily record precipitation of 99.8 mm (3.9 in) on 22 June 2012.

About the Station

  • Location: Mexico, 15.03 latitude, -92.13 longitude.
  • Elevation: 750 m (2,460 ft).
  • Period of record: 1949 to 2012, 64 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at San Jeronimo, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Jeronimo. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at San Jeronimo. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at San Jeronimo, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan38.9 C (102.0 F)10.0 C (50.0 F)n/an/a
Feb38.9 C (102.0 F)10.6 C (51.1 F)n/an/a
Mar38.9 C (102.0 F)10.0 C (50.0 F)n/an/a
Apr38.9 C (102.0 F)10.0 C (50.0 F)n/an/a
May38.9 C (102.0 F)7.8 C (46.0 F)n/an/a
Jun36.7 C (98.1 F)12.8 C (55.0 F)n/an/a
Jul38.9 C (102.0 F)8.9 C (48.0 F)n/an/a
Aug37.8 C (100.0 F)10.6 C (51.1 F)n/an/a
Sep37.8 C (100.0 F)10.0 C (50.0 F)n/an/a
Oct38.9 C (102.0 F)11.7 C (53.1 F)n/an/a
Nov38.9 C (102.0 F)10.0 C (50.0 F)n/an/a
Dec38.9 C (102.0 F)10.0 C (50.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Jeronimo by the year they were set 1,464 records at San Jeronimo still stand. 1966 holds the most, with 204. 01002003001952: 141953: 251954: 511955: 691956: 591957: 391958: 171959: 371960: 171961: 121962: 381963: 261964: 161965: 81966: 2041967: 71968: 151969: 611970: 1061971: 351972: 221973: 201974: 71975: 121976: 231977: 201978: 191979: 231980: 311981: 71982: 41983: 211985: 121986: 41987: 111988: 51990: 11991: 131992: 71993: 221994: 401995: 641996: 501997: 391998: 501999: 52000: 202001: 232002: 42003: 92004: 12005: 22006: 12007: 42008: 12011: 111952195819641970197619821990199620022008
1,464 records at San Jeronimo still stand. 1966 holds the most, with 204.
Standing records at San Jeronimo by the year they were set
Year setStanding records
195214
195325
195451
195569
195659
195739
195817
195937
196017
196112
196238
196326
196416
19658
1966204
19677
196815
196961
1970106
197135
197222
197320
19747
197512
197623
197720
197819
197923
198031
19817
19824
198321
198512
19864
198711
19885
19901
199113
19927
199322
199440
199564
199650
199739
199850
19995
200020
200123
20024
20039
20041
20052
20061
20074
20081
201111

All-Time Record Progression

5 new records
When San Jeronimo set new all-time records 5 all-time records were set at San Jeronimo between 16 July 1991 and 4 October 2005. Each dot is a new record. Record low minimum temperatureRecord low maximum temperatureRecord daily precipitation16 July 1991: Record low minimum temperature 8.9 C (48.0 F)26 May 1992: Record low minimum temperature 7.8 C (46.0 F)26 November 1995: Record low maximum temperature 20.0 C (68.0 F)7 September 1998: Record daily precipitation 272.0 mm (10.7 in)4 October 2005: Record daily precipitation 329.9 mm (13.0 in)199520002005
5 all-time records were set at San Jeronimo between 16 July 1991 and 4 October 2005. Each dot is a new record.
When San Jeronimo set new all-time records
DateKindDetail
1991-07-16Record low minimum temperatureRecord low minimum temperature 8.9 C (48.0 F)
1992-05-26Record low minimum temperatureRecord low minimum temperature 7.8 C (46.0 F)
1995-11-26Record low maximum temperatureRecord low maximum temperature 20.0 C (68.0 F)
1998-09-07Record daily precipitationRecord daily precipitation 272.0 mm (10.7 in)
2005-10-04Record daily precipitationRecord daily precipitation 329.9 mm (13.0 in)

Wettest Day of Each Month

Oct: 329.9 mm (13.0 in)
Record daily precipitation for each month at San Jeronimo The wettest day on record for each calendar month at San Jeronimo. The most was 329.9 mm (13.0 in) on 4 October 2005. 0100200300400 Jan: 70.4 mm (2.8 in), 31 January 1961 Jan Feb: 149.9 mm (5.9 in), 17 February 2012 Feb Mar: 90.9 mm (3.6 in), 29 March 2005 Mar Apr: 148.1 mm (5.8 in), 8 April 1963 Apr May: 184.9 mm (7.3 in), 19 May 1971 May Jun: 184.9 mm (7.3 in), 4 June 1968 Jun Jul: 202.9 mm (8.0 in), 31 July 2011 Jul Aug: 190.5 mm (7.5 in), 8 August 1966 Aug Sep: 272.0 mm (10.7 in), 7 September 1998 Sep Oct: 329.9 mm (13.0 in), 4 October 2005 Oct Nov: 160.3 mm (6.3 in), 17 November 1967 Nov Dec: 118.9 mm (4.7 in), 4 December 1969 Dec
The wettest day on record for each calendar month at San Jeronimo. The most was 329.9 mm (13.0 in) on 4 October 2005.
Record daily precipitation for each month at San Jeronimo
MonthRecord daily precipitation (mm)Date
Jan70.4 mm (2.8 in)31 January 1961
Feb149.9 mm (5.9 in)17 February 2012
Mar90.9 mm (3.6 in)29 March 2005
Apr148.1 mm (5.8 in)8 April 1963
May184.9 mm (7.3 in)19 May 1971
Jun184.9 mm (7.3 in)4 June 1968
Jul202.9 mm (8.0 in)31 July 2011
Aug190.5 mm (7.5 in)8 August 1966
Sep272.0 mm (10.7 in)7 September 1998
Oct329.9 mm (13.0 in)4 October 2005
Nov160.3 mm (6.3 in)17 November 1967
Dec118.9 mm (4.7 in)4 December 1969

Period of Record Coverage

1952 to 2012
Days with data per year at San Jeronimo 61 years of record at San Jeronimo, 1952 to 2012. 7 years have data for under 90 percent of days and are left out of rankings: 1952, 1964, 1965, 1969, 2004, 2011, 2012. 1952: 275 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 364 of 365 days1963: 365 of 365 days1964: 133 of 366 days1965: 122 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 214 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 365 of 366 days1977: 365 of 365 days1978: 363 of 365 days1979: 334 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 335 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 337 of 365 days1992: 335 of 366 days1993: 337 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 363 of 365 days2002: 363 of 365 days2003: 364 of 365 days2004: 318 of 366 days2005: 335 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 326 of 365 days2012: 180 of 366 days196019701980199020002010
61 years of record at San Jeronimo, 1952 to 2012. 7 years have data for under 90 percent of days and are left out of rankings: 1952, 1964, 1965, 1969, 2004, 2011, 2012.
Days with data per year at San Jeronimo
YearDays with dataShare of yearComplete
195227575%No
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962364100%Yes
1963365100%Yes
196413336%No
196512233%No
1966365100%Yes
1967365100%Yes
1968366100%Yes
196921459%No
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976365100%Yes
1977365100%Yes
197836399%Yes
197933492%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
198833592%Yes
1989365100%Yes
1990365100%Yes
199133792%Yes
199233592%Yes
199333792%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
200136399%Yes
200236399%Yes
2003364100%Yes
200431887%No
200533592%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
201132689%No
201218049%No

Latest Records

20
Latest records at San Jeronimo
DateStationRecordValueBeat old record byOld record stoodSignificance
22 June 2012San Jeronimo, MXdaily rain99.8 mm (3.9 in)1.0 mm (0.04 in)50 years21 of 100 (Routine)
18 June 2012San Jeronimo, MXdaily rain79.8 mm (3.1 in)6.9 mm (0.27 in)24 years15 of 100 (Routine)
21 May 2012San Jeronimo, MXdaily rain114.8 mm (4.5 in)10.4 mm (0.4 in)12 years13 of 100 (Routine)
16 April 2012San Jeronimo, MXdaily rain99.8 mm (3.9 in)38.8 mm (1.5 in)34 years37 of 100 (Notable)
15 April 2012San Jeronimo, MXdaily rain110.0 mm (4.3 in)15.0 mm (0.6 in)24 years21 of 100 (Routine)
25 March 2012San Jeronimo, MXdaily rain59.9 mm (2.4 in)25.6 mm (1.0 in)45 years34 of 100 (Routine)
17 February 2012San Jeronimo, MXmonthly rain149.9 mm (5.9 in)71.9 mm (2.8 in)56 years72 of 100 (Major)
3 February 2012San Jeronimo, MXdaily rain45.0 mm (1.8 in)8.2 mm (0.32 in)40 years24 of 100 (Routine)
30 December 2011San Jeronimo, MXdaily rain10.9 mm (0.4 in)1.0 mm (0.04 in)52 years20 of 100 (Routine)
29 October 2011San Jeronimo, MXdaily low max (Tie)22.8 C (73.0 F)tie50 years5 of 100 (Routine)
25 October 2011San Jeronimo, MXdaily low max22.8 C (73.0 F)2.2 C (4.0 F)53 years29 of 100 (Routine)
24 October 2011San Jeronimo, MXdaily low max21.7 C (71.1 F)3.3 C (5.9 F)50 years32 of 100 (Routine)
23 October 2011San Jeronimo, MXdaily low max20.6 C (69.1 F)5.0 C (9.0 F)42 years34 of 100 (Routine)
22 October 2011San Jeronimo, MXdaily low max21.7 C (71.1 F)3.3 C (5.9 F)44 years30 of 100 (Routine)
21 October 2011San Jeronimo, MXdaily low max21.7 C (71.1 F)2.2 C (4.0 F)42 years25 of 100 (Routine)
20 October 2011San Jeronimo, MXdaily low max20.6 C (69.1 F)5.0 C (9.0 F)49 years36 of 100 (Notable)
19 October 2011San Jeronimo, MXall-time low max (Tie)20.0 C (68.0 F)tie15 years7 of 100 (Routine)
18 October 2011San Jeronimo, MXdaily rain140.0 mm (5.5 in)62.0 mm (2.4 in)40 years41 of 100 (Notable)
18 October 2011San Jeronimo, MXall-time low max (Tie)20.0 C (68.0 F)tie15 years7 of 100 (Routine)
16 October 2011San Jeronimo, MXdaily low max21.7 C (71.1 F)3.3 C (5.9 F)58 years34 of 100 (Routine)

Climate Trend

42 complete years, 1953 to 2003
Annual mean temperature at San Jeronimo as warming stripes, 1953 to 2003 One stripe for each of 42 complete years at San Jeronimo, 1953 to 2003. Blue stripes are years cooler than the station's own mean of 24.6 C (76.3 F); red stripes are warmer. The coolest year was 1998, at 22.9 C (73.2 F), and the warmest was 1983, at 26.5 C (79.6 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1953: 23.3 C, -1.4 C from the station mean1954: 23.5 C, -1.1 C from the station mean1955: 23.3 C, -1.3 C from the station mean1956: 23.9 C, -0.7 C from the station mean1957: 24.0 C, -0.6 C from the station mean1958: 24.2 C, -0.5 C from the station mean1959: 23.8 C, -0.8 C from the station mean1960: 23.3 C, -1.3 C from the station mean1961: 23.5 C, -1.1 C from the station mean1962: 23.9 C, -0.8 C from the station mean1963: 23.4 C, -1.3 C from the station mean1966: 26.1 C, +1.5 C from the station mean1967: 23.5 C, -1.1 C from the station mean1968: 23.0 C, -1.6 C from the station mean1970: 24.9 C, +0.2 C from the station mean1971: 24.7 C, +0.1 C from the station mean1972: 25.5 C, +0.8 C from the station mean1973: 25.8 C, +1.2 C from the station mean1974: 25.2 C, +0.5 C from the station mean1975: 25.3 C, +0.6 C from the station mean1976: 25.5 C, +0.9 C from the station mean1977: 25.9 C, +1.3 C from the station mean1978: 25.8 C, +1.2 C from the station mean1980: 26.4 C, +1.7 C from the station mean1981: 26.0 C, +1.4 C from the station mean1982: 26.0 C, +1.4 C from the station mean1983: 26.5 C, +1.8 C from the station mean1984: 25.7 C, +1.0 C from the station mean1985: 25.7 C, +1.1 C from the station mean1986: 25.8 C, +1.1 C from the station mean1987: 26.4 C, +1.8 C from the station mean1989: 25.5 C, +0.9 C from the station mean1990: 25.7 C, +1.1 C from the station mean1994: 26.4 C, +1.7 C from the station mean1995: 24.9 C, +0.3 C from the station mean1996: 23.8 C, -0.8 C from the station mean1997: 23.2 C, -1.4 C from the station mean1998: 22.9 C, -1.7 C from the station mean1999: 23.2 C, -1.5 C from the station mean2000: 23.1 C, -1.5 C from the station mean2001: 22.9 C, -1.7 C from the station mean2003: 23.2 C, -1.5 C from the station mean1953196019651970197519801985199019952000
One stripe for each of 42 complete years at San Jeronimo, 1953 to 2003. Blue stripes are years cooler than the station's own mean of 24.6 C (76.3 F); red stripes are warmer. The coolest year was 1998, at 22.9 C (73.2 F), and the warmest was 1983, at 26.5 C (79.6 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at San Jeronimo as warming stripes, 1953 to 2003
YearAnnual mean temperatureDifference from the station mean
195323.3 C-1.36 C
195423.5 C-1.11 C
195523.3 C-1.32 C
195623.9 C-0.74 C
195724.0 C-0.58 C
195824.2 C-0.46 C
195923.8 C-0.84 C
196023.3 C-1.34 C
196123.5 C-1.13 C
196223.9 C-0.76 C
196323.4 C-1.25 C
196626.1 C+1.52 C
196723.5 C-1.14 C
196823.0 C-1.60 C
197024.9 C+0.25 C
197124.7 C+0.10 C
197225.5 C+0.84 C
197325.8 C+1.18 C
197425.2 C+0.53 C
197525.3 C+0.64 C
197625.5 C+0.87 C
197725.9 C+1.31 C
197825.8 C+1.20 C
198026.4 C+1.74 C
198126.0 C+1.37 C
198226.0 C+1.40 C
198326.5 C+1.83 C
198425.7 C+1.05 C
198525.7 C+1.12 C
198625.8 C+1.14 C
198726.4 C+1.76 C
198925.5 C+0.89 C
199025.7 C+1.06 C
199426.4 C+1.73 C
199524.9 C+0.27 C
199623.8 C-0.82 C
199723.2 C-1.42 C
199822.9 C-1.73 C
199923.2 C-1.47 C
200023.1 C-1.50 C
200122.9 C-1.69 C
200323.2 C-1.46 C

The fitted trend in annual mean temperature here over 1953 to 2003 is 0.1 C (-0.1 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.3 to 0.7) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San Jeronimo
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.1 to 0.4) per decade0.2 F (-0.3 to 0.7) per decade1953 to 200342Not clearly different from zero
Mean daily maximum0.8 C (0.4 to 1.2) per decade1.5 F (0.7 to 2.2) per decade1953 to 200342Rise
Mean daily minimum-0.6 C (-0.8 to -0.4) per decade-1.0 F (-1.4 to -0.7) per decade1953 to 200342Fall

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1949 to 2012
Yearly extremes at San Jeronimo: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)196936.1 C (97.0 F)61
Coldest night (TNn)7.8 C (46.0 F)199213.9 C (57.0 F)61
Wettest day (Rx1day)329.9 mm (13.0 in)2005102.1 mm (4.0 in)64
Wettest five days (Rx5day)1,021.1 mm (40.2 in)2005271.9 mm (10.7 in)64
Longest dry spell (CDD)95 days199622 days64

Hottest day (TXx)

Hottest day (TXx) at San Jeronimo by year The hottest day of the year at San Jeronimo, 1949 to 2012. The record is 38.9 C (102.0 F) in 1969, marked on the chart; the median year is 36.1 C (97.0 F). 3032.53537.540196019802000Record: 38.9 C (102.0 F) in 1969
The hottest day of the year at San Jeronimo, 1949 to 2012. The record is 38.9 C (102.0 F) in 1969, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at San Jeronimo by year
YearHottest day (TXx)
1949n/a
1950n/a
1951n/a
195230.6 C (87.1 F)
195331.7 C (89.1 F)
195431.7 C (89.1 F)
195535.6 C (96.1 F)
195632.8 C (91.0 F)
195731.1 C (88.0 F)
195832.2 C (90.0 F)
195932.8 C (91.0 F)
196031.7 C (89.1 F)
196131.7 C (89.1 F)
196232.8 C (91.0 F)
196330.0 C (86.0 F)
196430.0 C (86.0 F)
196537.8 C (100.0 F)
196636.7 C (98.1 F)
196735.6 C (96.1 F)
196835.6 C (96.1 F)
196938.9 C (102.0 F)
197038.9 C (102.0 F)
197138.9 C (102.0 F)
197235.6 C (96.1 F)
197337.8 C (100.0 F)
197435.6 C (96.1 F)
197538.9 C (102.0 F)
197638.9 C (102.0 F)
197738.9 C (102.0 F)
197837.2 C (99.0 F)
197937.8 C (100.0 F)
198037.8 C (100.0 F)
198138.9 C (102.0 F)
198237.8 C (100.0 F)
198337.8 C (100.0 F)
198436.7 C (98.1 F)
198537.2 C (99.0 F)
198638.9 C (102.0 F)
198736.7 C (98.1 F)
198837.2 C (99.0 F)
198935.6 C (96.1 F)
199036.1 C (97.0 F)
199137.8 C (100.0 F)
199237.8 C (100.0 F)
199336.1 C (97.0 F)
199436.7 C (98.1 F)
199535.6 C (96.1 F)
199636.7 C (98.1 F)
199736.7 C (98.1 F)
199836.7 C (98.1 F)
199932.8 C (91.0 F)
200035.0 C (95.0 F)
200135.6 C (96.1 F)
200236.7 C (98.1 F)
200332.8 C (91.0 F)
200437.8 C (100.0 F)
200533.9 C (93.0 F)
200632.8 C (91.0 F)
200736.7 C (98.1 F)
200831.7 C (89.1 F)
200931.7 C (89.1 F)
201033.9 C (93.0 F)
201131.7 C (89.1 F)
201232.8 C (91.0 F)

Coldest night (TNn)

Coldest night (TNn) at San Jeronimo by year The coldest night of the year at San Jeronimo, 1949 to 2012. The record is 7.8 C (46.0 F) in 1992, marked on the chart; the median year is 13.9 C (57.0 F). 6810121416196019802000Record: 7.8 C (46.0 F) in 1992
The coldest night of the year at San Jeronimo, 1949 to 2012. The record is 7.8 C (46.0 F) in 1992, marked on the chart; the median year is 13.9 C (57.0 F).
Coldest night (TNn) at San Jeronimo by year
YearColdest night (TNn)
1949n/a
1950n/a
1951n/a
195211.7 C (53.1 F)
195310.6 C (51.1 F)
195415.0 C (59.0 F)
195515.0 C (59.0 F)
195613.9 C (57.0 F)
195715.6 C (60.1 F)
195815.0 C (59.0 F)
195911.7 C (53.1 F)
196015.0 C (59.0 F)
196115.0 C (59.0 F)
196215.0 C (59.0 F)
196314.4 C (57.9 F)
196415.0 C (59.0 F)
196515.0 C (59.0 F)
196610.6 C (51.1 F)
196714.4 C (57.9 F)
196813.3 C (55.9 F)
196913.9 C (57.0 F)
197012.8 C (55.0 F)
197110.6 C (51.1 F)
197211.7 C (53.1 F)
197313.9 C (57.0 F)
197415.0 C (59.0 F)
197515.0 C (59.0 F)
197612.8 C (55.0 F)
197715.0 C (59.0 F)
197815.0 C (59.0 F)
197915.6 C (60.1 F)
198012.8 C (55.0 F)
198113.9 C (57.0 F)
198215.6 C (60.1 F)
198312.8 C (55.0 F)
198415.0 C (59.0 F)
198515.0 C (59.0 F)
198613.9 C (57.0 F)
198715.0 C (59.0 F)
198815.0 C (59.0 F)
198915.0 C (59.0 F)
199015.0 C (59.0 F)
19918.9 C (48.0 F)
19927.8 C (46.0 F)
199315.6 C (60.1 F)
199415.0 C (59.0 F)
199510.6 C (51.1 F)
199610.0 C (50.0 F)
199710.0 C (50.0 F)
199810.0 C (50.0 F)
199911.7 C (53.1 F)
200011.7 C (53.1 F)
200112.8 C (55.0 F)
200212.8 C (55.0 F)
200312.8 C (55.0 F)
200413.9 C (57.0 F)
200513.9 C (57.0 F)
200613.9 C (57.0 F)
200713.9 C (57.0 F)
200811.7 C (53.1 F)
200911.7 C (53.1 F)
201015.0 C (59.0 F)
201115.6 C (60.1 F)
201215.6 C (60.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Jeronimo by year The wettest day of the year at San Jeronimo, 1949 to 2012. The record is 329.9 mm (13.0 in) in 2005, marked on the chart; the median year is 102.1 mm (4.0 in). 0100200300400196019802000Record: 329.9 mm (13.0 in) in 2005
The wettest day of the year at San Jeronimo, 1949 to 2012. The record is 329.9 mm (13.0 in) in 2005, marked on the chart; the median year is 102.1 mm (4.0 in).
Wettest day (Rx1day) at San Jeronimo by year
YearWettest day (Rx1day)
194988.9 mm (3.5 in)
195090.9 mm (3.6 in)
195194.0 mm (3.7 in)
195296.8 mm (3.8 in)
195396.3 mm (3.8 in)
195493.0 mm (3.7 in)
195594.5 mm (3.7 in)
195697.3 mm (3.8 in)
195797.3 mm (3.8 in)
195890.9 mm (3.6 in)
195990.4 mm (3.6 in)
196090.9 mm (3.6 in)
1961146.3 mm (5.8 in)
1962180.1 mm (7.1 in)
1963203.2 mm (8.0 in)
196470.1 mm (2.8 in)
1965125.0 mm (4.9 in)
1966190.5 mm (7.5 in)
1967160.3 mm (6.3 in)
1968184.9 mm (7.3 in)
1969118.9 mm (4.7 in)
1970149.9 mm (5.9 in)
1971184.9 mm (7.3 in)
1972109.0 mm (4.3 in)
1973111.0 mm (4.4 in)
197499.8 mm (3.9 in)
197598.8 mm (3.9 in)
197681.8 mm (3.2 in)
1977114.8 mm (4.5 in)
1978145.8 mm (5.7 in)
197993.0 mm (3.7 in)
1980164.8 mm (6.5 in)
1981100.1 mm (3.9 in)
1982168.7 mm (6.6 in)
1983102.1 mm (4.0 in)
1984142.0 mm (5.6 in)
1985123.7 mm (4.9 in)
198697.3 mm (3.8 in)
1987102.1 mm (4.0 in)
1988134.9 mm (5.3 in)
1989100.6 mm (4.0 in)
199089.9 mm (3.5 in)
199177.5 mm (3.1 in)
199269.9 mm (2.8 in)
199351.8 mm (2.0 in)
1994127.8 mm (5.0 in)
199589.9 mm (3.5 in)
199669.9 mm (2.8 in)
199741.9 mm (1.6 in)
1998272.0 mm (10.7 in)
1999162.8 mm (6.4 in)
2000113.8 mm (4.5 in)
200195.0 mm (3.7 in)
200284.8 mm (3.3 in)
200395.0 mm (3.7 in)
200482.8 mm (3.3 in)
2005329.9 mm (13.0 in)
2006153.9 mm (6.1 in)
2007190.0 mm (7.5 in)
2008121.9 mm (4.8 in)
2009119.9 mm (4.7 in)
2010140.0 mm (5.5 in)
2011202.9 mm (8.0 in)
2012149.9 mm (5.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Jeronimo by year The wettest five days of the year at San Jeronimo, 1949 to 2012. The record is 1,021.1 mm (40.2 in) in 2005, marked on the chart; the median year is 271.9 mm (10.7 in). 02505007501,0001,250196019802000Record: 1,021.1 mm (40.2 in) in 2005
The wettest five days of the year at San Jeronimo, 1949 to 2012. The record is 1,021.1 mm (40.2 in) in 2005, marked on the chart; the median year is 271.9 mm (10.7 in).
Wettest five days (Rx5day) at San Jeronimo by year
YearWettest five days (Rx5day)
1949188.3 mm (7.4 in)
1950229.7 mm (9.0 in)
1951269.3 mm (10.6 in)
1952270.3 mm (10.6 in)
1953223.6 mm (8.8 in)
1954291.7 mm (11.5 in)
1955296.8 mm (11.7 in)
1956246.9 mm (9.7 in)
1957281.7 mm (11.1 in)
1958266.6 mm (10.5 in)
1959278.2 mm (11.0 in)
1960203.4 mm (8.0 in)
1961300.9 mm (11.8 in)
1962345.8 mm (13.6 in)
1963356.1 mm (14.0 in)
1964159.8 mm (6.3 in)
1965303.6 mm (12.0 in)
1966341.9 mm (13.5 in)
1967282.0 mm (11.1 in)
1968386.1 mm (15.2 in)
1969272.3 mm (10.7 in)
1970287.0 mm (11.3 in)
1971407.6 mm (16.0 in)
1972232.4 mm (9.1 in)
1973269.5 mm (10.6 in)
1974202.3 mm (8.0 in)
1975239.5 mm (9.4 in)
1976163.3 mm (6.4 in)
1977368.8 mm (14.5 in)
1978323.1 mm (12.7 in)
1979269.5 mm (10.6 in)
1980242.7 mm (9.6 in)
1981304.4 mm (12.0 in)
1982341.7 mm (13.5 in)
1983260.1 mm (10.2 in)
1984271.5 mm (10.7 in)
1985279.9 mm (11.0 in)
1986283.9 mm (11.2 in)
1987260.4 mm (10.3 in)
1988290.3 mm (11.4 in)
1989257.1 mm (10.1 in)
1990209.6 mm (8.3 in)
1991161.6 mm (6.4 in)
1992251.5 mm (9.9 in)
1993114.0 mm (4.5 in)
1994224.6 mm (8.8 in)
1995242.6 mm (9.6 in)
1996213.4 mm (8.4 in)
1997101.4 mm (4.0 in)
1998576.0 mm (22.7 in)
1999404.7 mm (15.9 in)
2000340.1 mm (13.4 in)
2001239.7 mm (9.4 in)
2002241.3 mm (9.5 in)
2003235.2 mm (9.3 in)
2004263.7 mm (10.4 in)
20051,021.1 mm (40.2 in)
2006453.2 mm (17.8 in)
2007344.5 mm (13.6 in)
2008302.7 mm (11.9 in)
2009315.8 mm (12.4 in)
2010400.7 mm (15.8 in)
2011469.6 mm (18.5 in)
2012408.2 mm (16.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Jeronimo by year The longest dry spell of the year at San Jeronimo, 1949 to 2012. The record is 95 days in 1996, marked on the chart; the median year is 22 days. 0255075100196019802000Record: 95 days in 1996
The longest dry spell of the year at San Jeronimo, 1949 to 2012. The record is 95 days in 1996, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at San Jeronimo by year
YearLongest dry spell (CDD)
194915 days
195028 days
195118 days
195229 days
195318 days
195425 days
195518 days
195628 days
195720 days
195830 days
195916 days
196015 days
196114 days
196221 days
196316 days
196418 days
196517 days
196610 days
196718 days
196839 days
196915 days
197019 days
197116 days
197220 days
197331 days
197438 days
197527 days
197647 days
197761 days
197831 days
197933 days
198027 days
198117 days
198220 days
198355 days
198436 days
198516 days
198618 days
198763 days
198822 days
198925 days
199012 days
19915 days
19927 days
199331 days
199423 days
19953 days
199695 days
19979 days
199820 days
199919 days
200019 days
200140 days
200238 days
200338 days
200421 days
200529 days
200628 days
200727 days
200817 days
200934 days
201029 days
201126 days
201223 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

58 years, 1950 to 2010

A day with at least 109.6 mm (4.3 in) of rain is expected about once in 2 years. A day with at least 318.9 mm (12.6 in) of rain is expected about once in 100 years.

Rainfall return levels at San Jeronimo: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years109.6 mm (4.3 in)
5 years150.0 mm (5.9 in)
10 years182.1 mm (7.2 in)
25 years229.9 mm (9.1 in)
50 years271.6 mm (10.7 in)
100 years318.9 mm (12.6 in)Longer than the 58 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 58 years of values from 1950 to 2010.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 329.9 mm (13.0 in) in 2005; 272.0 mm (10.7 in) in 1998; 203.2 mm (8.0 in) in 1963.

Download the Data

  • Data for San Jeronimo standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for San Jeronimo threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).